Question

Name the element whose electronic configuration is $2,8,8,2$.

Answer 1

• The given electronic configuration is $2,8,8,2$.
• It means that the atomic number of the element is $20$. So, the element is Calcium$\left(\mathrm{Ca}\right)$.
• It is placed in the second group and fourth period of the modern periodic table.

Hence, the element whose electronic configuration is $2,8,8,2$ is Calcium$\mathbf{\left(}\mathbf{Ca}\mathbf{\right)}$.